// All part of the Dynamic Star Rating by Jordan Boesch!

// http://creativecommons.org/licenses/by-nc-nd/2.5/ca/

// PRE-LOAD IMAGES -----------------------------



if (document.images){

  pic1 = new Image(220,19);

  pic1.src = "images/rating_loading.gif";



  pic2 = new Image(25,75);

  pic2.src = "images/rating_star.gif";



  pic3 = new Image(25,75);

  pic3.src = "images/rating_star_2.gif";



  pic4 = new Image(16,13);

  pic4.src = "images/rating_tick.gif";



  pic5 = new Image(14,14);

  pic5.src = "images/rating_warning.gif";

}



// AJAX ----------------------------------------



var xmlHttp

function GetXmlHttpObject(){

var xmlHttp = null;

	try {

	  // Firefox, Opera 8.0+, Safari

	  xmlHttp = new XMLHttpRequest();

	  }

	catch (e) {

	  // Internet Explorer

	  try {

			xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");

		}

	  catch (e){

			xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");

		}

	  }

	return xmlHttp;

}



// Calculate the rating

function rate(rating,id,show5,showPerc,showVotes){

	xmlHttp = GetXmlHttpObject()

	if(xmlHttp == null){

		alert ("Your browser does not support AJAX!");

		return;

	  }

	xmlHttp.onreadystatechange = function(){

	var loader = document.getElementById('loading_'+id);

	var uldiv = document.getElementById('ul_'+id);

		if (xmlHttp.readyState == 4){

			//loader.style.display = 'none';

			var res = xmlHttp.responseText;

			//alert(res);

			if(res == 'already_voted'){

				loader.style.display = 'block';

				loader.innerHTML = '<div class="voted_twice">You already voted!</div>';

			} else {

				loader.style.display = 'block';

				loader.innerHTML = '<div class="voted">Thanks for voting!</div>';

				if(show5 == true){

					var out = document.getElementById('outOfFive_'+id);

					var calculate = res/20;

					out.innerHTML = Math.round(calculate*100)/100; // 3.47;

					//out.innerHTML = Math.round((calculate*2),0)/2; // 3.5;

				}

				if(showPerc == true){

					var perc = document.getElementById('percentage_'+id);

					//var newPerc = Math.round(Math.ceil(res/5))*5;

					var newPerc = res;

					perc.innerHTML = newPerc+'%';

				}

				else if(showPerc == false){

					var newPerc = res;

				}

				if(showVotes == true){

					var votediv = document.getElementById('showvotes_'+id).firstChild.nodeValue;

					var splitted = votediv.split(' ');

					var newval = parseInt(splitted[0]) + 1;

					if(newval == 1){

						document.getElementById('showvotes_'+id).innerHTML = newval+' Vote';

					} else {

						document.getElementById('showvotes_'+id).innerHTML = newval+' Votes';

					}

				}

				var ulRater = document.getElementById('rater_'+id);

				ulRater.className = 'star-rating2';

				var all_li = ulRater.getElementsByTagName('li');

				for(var i=1;i<all_li.length;i++){

					all_li[i].getElementsByTagName('a')[0].onclick = 'return false;';

					all_li[i].getElementsByTagName('a')[0].setAttribute('href','#');

				}

				if(navigator.appName == 'Microsoft Internet Explorer'){

					uldiv.style.setAttribute('width',newPerc+'%'); // IE

				 } else {

					uldiv.setAttribute('style','width:'+newPerc+'%'); // Everyone else

				 }

			}

		} else {

			loader.innerHTML = '<img src="images/rating_loading.gif" alt="loading" />';

		}

	}

	var url = "includes/rating_process.php";

	var params = "id="+id+"&rating="+rating;

	xmlHttp.open("POST",url,true);

	xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");

	xmlHttp.setRequestHeader("Content-length", params.length);

	xmlHttp.setRequestHeader("Connection", "close");

	xmlHttp.send(params);

}